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Related to planum: planum sphenoidale


1. a flat surface determined by the position of three points in space.
2. an imaginary flat surface that divides the body into sections (see accompanying figure). adj., adj pla´nar.
3. a specified level, as the plane of anesthesia.
4. to rub away or abrade; see also planing and plastic surgery.
5. a superficial incision in the wall of a cavity or between tissue layers, especially in plastic surgery, made so that the precise point of entry into the cavity or between the layers can be determined.
Planes of section. Transverse, sagittal, and frontal planes of the body. From Applegate, 2000.
coronal p's frontal p's.
datum plane a given horizontal plane from which craniometric measurements are made.
frontal p's those planes passing longitudinally through the body, an organ, or a part, at right angles to the median plane and dividing into front and back portions. Called also coronal planes.
horizontal plane transverse plane.
median plane one passing longitudinally through the body, an organ, or a part from front to back, dividing it into right and left halves.
sagittal p's vertical planes through the body parallel to the median plane or the sagittal suture, dividing the body into unequal left and right portions.
transverse plane one passing horizontally through the body, an organ, or a part at right angles to the median and frontal planes, dividing it into upper and lower portions. Called also horizontal plane.
vertical plane one perpendicular to a horizontal plane, such as a sagittal plane, median plane, or frontal plane.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


(plān), [TA]
1. A two-dimensional flat surface.
2. An imaginary surface formed by extension of a point through any axis or two definite points, in reference especially to craniometry and to pelvimetry.
Synonym(s): planum
[L. planus, flat]
Farlex Partner Medical Dictionary © Farlex 2012


Temazepam, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


, pl. plana (plā'nŭm, -nă) [TA]
A plane or flat surface.
See also: plane
[L. plane]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Patient discussion about planum

Q. what does the term flat affect means?

A. "Flat affect: A severe reduction in emotional expressiveness. People with depression and schizophrenia often show flat affect. A person with schizophrenia may not show the signs of normal emotion, perhaps may speak in a monotonous voice, have diminished facial expressions, and appear extremely apathetic. Also known as blunted affect." :)
couldn't said it better myself...:)

Q. Can flat feet be repaired by surgery? I have flat feet and I’m looking for all sorts of treatments for it- I heard there is a surgery for it- is it helpful?

A. As far as I know- they don’t treat flat feet that are asymptomatic. So first of all check if it bothers you. secondly there are 2 kinds of flat feet- rigid and flexible. There are different and treated differently. Not always a surgery (which is very painful and costly) is needed– I went to a Rolf method therapist by the advice of my orthopedic and it’s much better now. Ask an orthopedic.

Q. I think my son has flat foot, how to tell for sure? I didn't notice it before, he is 3 years old now and all shoes hurt him. Does it mean he has flat foot? what else can it be?

A. Pes planus (flat foot) is not a rare condition in toddlers, and may resolves spontaneously as the child grows. It is diagnosed clinically, i.e. by a doctor such as pediatrician or pediatric orthopedic surgeon, and radiographs are not universally indicated

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References in periodicals archive ?
In the right hemisphere, the parietal planum (PP) tends to be long, the supramarginal gyrus is taller, and the angular gyrus is more anterior and superior (Figure 6).
planum colonies will limit growth, and that large colonies will show more evidence of reproductive activity than small colonies.
Planum temporale asymmetry, reappraisal since Geschwind and Levitsky, Neuropsychologia, 25, 853-868.
"Methane ice, which is much less volatile at Pluto's temperatures, is not restricted to the Sputnik Planum glacier like nitrogen and carbon monoxide.
But recently the team unveiled an image of Sputnik Planum that reveals clusters of hills that stick up through the plain's surface.
"Krun Macula rises 1.5 miles (2.5 kilometers) above the surrounding plain 6 informally named Sputnik Planum 6 and is scarred by clusters of connected, roughly circular pits that typically reach between 5 and 8 miles (8 and 13 kilometers) across, and up to 1.5 miles (2.5 kilometers) deep," NASA said in the statement.
The best views of this Texas-size region, dubbed Sputnik Planum, reveal meandering, interconnected depressions that subdivide the terrain into crude polygons roughly 30 to 60 km across.
On the sunlit side of Pluto (right), the smooth expanse of the informally named icy plain Sputnik Planum is flanked to the west (above, in this orientation) by rugged mountains up to 11,000 feet (3,500 meters) high, including the informally named Norgay Montes in the foreground and Hillary Montes on the skyline.
Washington, February 15 ( ANI ): On 13 January, ESA's Mars Express took a high-resolution stereo image of the southeast corner of the Amenthes Planum region on Mars, near to Palos crater and the mouth of a well-known sinuous valley, Tinto Vallis.
Three weeks later, the lander beating Opportunity touched down at the flatter Meridiani Planum near the Martian equator.
Opportunity was working on the Meridiani Planum, a flat plain containing the iron-rich mineral grey haematite.
The unmanned six-wheeled rover landed in Meridiani Planum, the US space agency said.